gcc/testsuite/gcc.dg/vect/vect-35.c

   1 /* { dg-do run { target powerpc*-*-* } } */
   2 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   3 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-stats -maltivec" { target powerpc*-*-* } } */
   4 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-stats -msse2" { target i?86-*-* x86_64-*-* } } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 typedef char achar __attribute__ ((__aligned__(16)));
  10
  11 #define N 16
  12 achar x[N];
  13
  14 int main1 ()
  15 {
  16   union {
  17     achar a[N];
  18     achar b[N];
  19   } s;
  20   int i;
  21
  22   for (i = 0; i < N; i++)
  23     {
  24       s.b[i] = 3*i;
  25     }
  26
  27   for (i = 0; i < N; i++)
  28     {
  29       s.a[i] = s.b[i] + 1;
  30     }
  31
  32   /* check results:  */
  33   for (i = 0; i < N; i++)
  34     {
  35       if (s.a[i] != s.b[i])
  36         abort ();
  37     }
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   check_vect ();
  45
  46   return main1 ();
  47 }
  48
  49
  50 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 1 "vect" } } */